Machine-tool.



PATENTED MAY 21, 1907.

A. WOOD. MACHINE TOOL. APPLICATION FILED DEO.6,1906.

Witnesses: I

m: mmms PETERS cc., wssnmcrau, 04 c.

UNTTED STATES PATENT OFFICE.

TO N ILES-BEMEN T-PON D N EW JERSEY.

MACHINE-TOOL N0. 854,446. Specification of Letters Patent.

Application filed December 5, 1906. Serial No. 346,376.

Patented May 21, 1907.

To all whom, it may concern:

Be it known that I, AUGUSTUS Woon, a citizen of the United States, residing at Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in tl Machine-Tools, of which the following is a l ranged to be driven at the respective oppospecification. site ends of the The invention, pertaining to such ma- I11 the drawing :1, indicates the bed of a chine tools as boring mills and planers, will boring mill: 2, t 1e housings: 3, the top be readily understood from the following derace 4, the rail: 5, the table: 6, the vertiscription taken in connection with the accal plane of center of width of the machine: companying drawing in which 2 7, the rail elevating screws: 8, the rail elevat- Figure 1 is a partial rear elevation of a ing top shaft: 9, bevel gears connecting this boring mill embodying an exemplificati'on of top shaft with the rail-elevating screws: 10, my improvement: and Fig. 2 a vertical diathe rail clamps: 11, the feed screw mounted metrical section of one of the gears for the in the rail for traversing the saddle thereon:

12, the second similar screw employed if the transmission of the fleeting motion. I

While certain general principles of my inmachine is provided with two saddles: 13, the feed rod oui'naled 1n the rail for transvention are applicable to both boring mills nntting vertical feeding motion to the tool been debar carried by the saddle, or to both tool bars if there are two saddles: 14, the feed gear mounted at the end of the rail: 15, the slipgear to go, selectively, on the end of the feedscrew or feedrod and be driven by gear 14: 16, bearings on the rail for the inner ends of thefeed-screw: 17, bevel gearing carried by the rail to transmit motion om a vertical feed shaft to feed gear 14: 18, the main driving shaft for the mitting motion from this driving shaft to the table: 20, the horizontal feed shaft extendboring mills, has assumed but a single saddle on the rail. In double head where there are Most all boring mills are characterized by a rail vertical adjustable on the housings; rail elevating screws at the housings; power mechanism carried by the top brace for operating these screws in either direction; a saddle sliding on the rail, a screw on the rail for feeding the saddle thereon a tool-carrying bar vertically movable on the saddle a feed-rod mounted in the rail for transmitting vertical feeding motion to the bar; power mechanism for driving the table transmitting mechanism connected with the table driving mechanism and with the feed screw and feed rod of the rail. The feeding l motion impressed upon the feed rod and feed screw of the rail is comparatively slow, l is active only when the table is in moand lowering of the rail, being done by independent power mechanism, may be effected while the table is at rest and the table-driving mechanism idle, and this work may be done at proper speeds l quite independent of any table driving speeds or feeding speeds. The feed-transmitting motions imparted to the feed screw and feed rod. of the rail are slow and not suited for fleeting the saddle and tool bar and, in 8 addition, this feeding motion would be availusual in boring mills able only when the table was in motion. The above general description, which, by the J are as usual, it being understood, however, way, applies largely to planers as well as to i any event, and to both sides if harmony with the table: 22, the vertical feed shaft for transmitting feeding motion to the gearing carried by the end of the rail: 23, reversing gearing connecting shafts and 22 so that vertical feed shaft 22 may be caused to turniii cording to the direction of feed desired: 24, feed-reversing handle: and 25, the speed-box containing gearing cooperating with shafts 20 and 22 to provide for selective variations by shaft 22.

All of the parts thus far referred to are as in the rate of feed motion to be transmittedn clutch rod: 32, an arm projecting from the 2 854,446 has, as is the case, an upward connection to l by a reversible electric motor. When the reach the feed gearing at the end of the rail. rail has been properly adjusted then clutch 38 is thrown out of engagement.

Assume, now, that the saddle is to be fleeted along the rail. In such case slip gear 15 is to be placed on the end of feed-screw 11 to engage gear 14, and clutch 43 is to be engaged with clutch 41, by raising handle 31 which act disengages clutch 29. The top power shaft 34, turning in selective direction, will now give to splined shaft 27 motion at a very much higher rate of speed than that of its mere feeding motion and rail screw 11 will be turned at corresponding high rate and the saddle fleeted accordingly. If, instead of fleeting the saddle along the rail, it be desired to fleet the tool bar vertically in the saddle, then slip gear 15 is employed on feed rod 13. As the general construction of this class of machines imposes fixed limitations to the travel of the saddle on the rail, and to the travel of the tool bar in the saddle, and as the nature of the work on the machine imposes other limitations, the construction of the fleeting mechanism described has been made such that the fleeting motion will continue only so long as the clutch rod is held up by handle 31, the release of that handle permitting long splined shaft 37 to again go into normal positive connection with vertical feed shaft 22.

The fleeting of either tool bar of a double saddle machine may be done by the fleeting mechanism at either side of the machine, it being understood that the mechanism illustrated in the drawing'for one side of the ma chine is duplicated at the other side. But for fleeting the saddles of double saddle machines recourse will be had to the fleeting mechanism at the appropriate side of the machine.

I claim:

1. In a machine tool of the class described, the combination, substantially as set forth, of a rail, feed gearing thereon, a vertically disposed splined shaft operatively connected with thefeed gearing on the rail of the machine, power driven mechanism disposed at the base of said splined shaft, power driven mechanism disposed at the top of said splined shaft, and hand operative clutches at the lower and upper ends of said splined shaft to serve in connecting it at will with either of said power driven mechanisms independently.

2. In a machine tool of the class described, the combination, substantially as set forth, of a rail, feed gearing thereon, avertically disposed splined shaft operatively connected with the feed gearing on The upward connection, while present, has not thus far been specifically referred to as it embodies peculiarities.

Proceeding with the drawing '.26, indicates a socket in the upper end of vertical feed shaft 22: 27, a splined shaft loosely stepped in this socket and having splined engagement with rail gearing 17, this splined engagement being as is usual with the long vertical feed shaft: 28, a clutch carried by the upper end of vertical feed shaft 22: 29, a sliding clutch carried by the lower'end of splined shaft 27 and cooperating with clutch 28: 30, a clutch-rod sliding vertically nearshaft 27: 31, a handle for raising and lowering this clutch rod into engagement with sliding clutch 29: 33, a spring acting upwardly on the clutch rod, not to raise the rod or hold it up but merely to counterbalance its weight to some extent: 34, a powershaft supported at the top of the housings: 35, a power device I on this shaft for turning it in either direction, this power device being typified as a pulley and gear on the shaft to either or both of which the driving power may be applied: 36, a gear loose on the rail-elevating top shaft 8: 37, a clutch on this gear: 38, a sliding clutch on shaft 8 cooperating with clutch 37: 39, hand mechanism, shown as a lever and rod, for engaging and disengaging clutch 38: 40, a gear fast on top power shaft 34and driving gear 36: 41., a clutch loosely socketed on the upper end of vertical splined feed shaft 27: 42, bevel gears connecting top power shaft 34 with clutch 41: 43, a sliding clutch on the upper end of vertical splined feed shaft 27 and cooperating with clutch 41: and 44, an-arm fast on clutch rod 30 and engaging sliding clutch 43.

Clutch rod 30 is preferably made as light as practicable, my preference being to form it of a hollow tube, and spring 33 should not be capable of raising the rod from its lowest position, its office being merely to lighten the labor of lifting the rod.

I Normally, when the boring mill is at work, the clutch rod will be in its lowest position and clutches 2829 will be engaged, and clutch 43 disengaged, under which conditions long shaft 27 will form a prolongation of vertical feed shaft 22. The power mechanism driving the table through the medium of shaft 18, will then transmit feeding motion to feed gear 14 in direction and at speed controlled by the adjustments at speed-box 25, as usual. If it be desired to raise or lower the rail, the table being at rest in general cases, rail clamps 10 are loosened, clutch 38 is to be engaged, and motion is to be given to top power shaft 34 in proper direction. This top power shaft 34 may, if desired, he in constant motion. My preference is to drive this top shaft the ra1l of the machine, power driven mechanism disposed at the base of said splined shaft, power driven mechanism disposed at the top of said splined shaft, clutches at the lower and upper ends of said splined shaft to serve in connecting it at will with either of said power driven mechanlsms independently,

of a rail, feed gearing and hand operative thereon, a vertically disspl ned shaft operatlvely connected mechanism connecting the two clutches for with the eed gearing on the rail of the mamovlng them in unison to disengage one chine, power driven mechanism disposed at clutch before engaging the other clutch. the

In a machine tool of the class described,

tie combination, substantially as set forth, I

0 a rail, feed gearing thereon, a vertically I said splined shaft to serve in connecting it at operatively connected with l fee gearing on the rail, powerdriven mechanism disposed at the base of said shaft,

power driven mechanism disposed at the top l l of said shaft, clutches at the lower and upper ends of said shaft shaft and automatically per clutch and engages the lower gage one clutch before engaging the other clutch, the lower clutch being capable of automatically engaging when the hand is removed from said d-operative mechanism.

4. In a machine tool of the the combination,

AUGUSTUS WOOD.

class described, substantially as set forth, 

